NATIONAL ELECTRICAL JATC APPRENTICE LINEMAN TEST GUIDE QUESTIONS ANSWERED CORRECTLY
LATEST 2026
medium cable - Answers cable rated at up to 35,000 volts.
133 % insulation level - Answers must have adequate assurance that the faulted section will be
cleared within 1 hour.
employee - Answers has legal rights and is entitled to protection for safety on the job.
fall arrest system - Answers must be worn when preparing to install a termination from an aerial
bucket.
insulating tape - Answers is a highly conformable, self-fusing ethylene propylene rubber (EPR) tape
that may have a 'snakeskin' liner that is easily removed as the tape is applied.
annular conductor - Answers is generally used for sizes above 1,000 MCM to help combat the 'skin
effect' problem.
poor workmanship - Answers is a common cause due to strands of material left in joint.
tape splice - Answers requires that the cable insulation ends are penciled in addition to the normal
cable cutbacks.
insulation shield - Answers must be carefully removed to leave a smooth, square leading edge to
minimize electrical stresses.
low-voltage secondary cables - Answers generally consist of conductor strands, insulations, and
sometimes an outer jacket.
termination procedures - Answers for low-voltage secondary cables are far more complex than high-
voltage primary cables.
external ground - Answers should be provided that is connected to the cable shield at the base of the
termination; it should be installed even if it is not used.
Corona - Answers is another name for a partial discharge.
splice jacket - Answers provides mechanical protection and moisture sealing.
Insulation - Answers covers the entire splice insulation.
splice kits - Answers are easier and faster to install but are sensitive to the proper kit selection, cable
preparation dimensions, and unique installation steps.
bushing well - Answers is an apparatus bushing component that forms a cavity to accept an
accessory.
200-ampere elbows - Answers are sized to fit up to 4/0 AWG copper or 250 kcmil aluminum
conductor.
600-ampere connecting component - Answers made of copper instead of aluminum is rated at 900 A.
IEEE 386 - Answers states that elbows are available in 2 general categories.
600-ampere elbows - Answers are designed to operate as a dead break only.
poorly grounded cables - Answers are vulnerable to outages and to being damaged by surges.
Rural Utility Service (RUS) - Answers introduced regulations stating that a jacketed cable must be
grounded a minimum of 4 ground(s) per mile to reduce shield voltages to 25 volts or less.
multiple grounds - Answers will induce currents in the metallic shield, which reduces the cable's
overall ampacity.
bonding - Answers neutralizes shielding currents and reduces fault currents.
bonding - Answers The advantage of bonding is that it neutralizes shielding currents and reduces
fault currents.
soldering - Answers The traditional method of connecting a cable accessory's metallic ground to a
cable's metallic shield.
grounding locations - Answers Two grounding locations can reduce fault currents by dividing the
current between them.
spring clamp - Answers The live action of the spring clamp performs poorly when fault currents and
other surges occur.
solderless connection - Answers Contemporary manufactured kits generally provide a solderless
wire/braid connection(s) for the ground.
concentric neutral splices - Answers In the case of concentric neutral splices, the neutral bundles are
connected across the splice with strand(s) from each bundle connected to the splice's grounding
tab(s).
LATEST 2026
medium cable - Answers cable rated at up to 35,000 volts.
133 % insulation level - Answers must have adequate assurance that the faulted section will be
cleared within 1 hour.
employee - Answers has legal rights and is entitled to protection for safety on the job.
fall arrest system - Answers must be worn when preparing to install a termination from an aerial
bucket.
insulating tape - Answers is a highly conformable, self-fusing ethylene propylene rubber (EPR) tape
that may have a 'snakeskin' liner that is easily removed as the tape is applied.
annular conductor - Answers is generally used for sizes above 1,000 MCM to help combat the 'skin
effect' problem.
poor workmanship - Answers is a common cause due to strands of material left in joint.
tape splice - Answers requires that the cable insulation ends are penciled in addition to the normal
cable cutbacks.
insulation shield - Answers must be carefully removed to leave a smooth, square leading edge to
minimize electrical stresses.
low-voltage secondary cables - Answers generally consist of conductor strands, insulations, and
sometimes an outer jacket.
termination procedures - Answers for low-voltage secondary cables are far more complex than high-
voltage primary cables.
external ground - Answers should be provided that is connected to the cable shield at the base of the
termination; it should be installed even if it is not used.
Corona - Answers is another name for a partial discharge.
splice jacket - Answers provides mechanical protection and moisture sealing.
Insulation - Answers covers the entire splice insulation.
splice kits - Answers are easier and faster to install but are sensitive to the proper kit selection, cable
preparation dimensions, and unique installation steps.
bushing well - Answers is an apparatus bushing component that forms a cavity to accept an
accessory.
200-ampere elbows - Answers are sized to fit up to 4/0 AWG copper or 250 kcmil aluminum
conductor.
600-ampere connecting component - Answers made of copper instead of aluminum is rated at 900 A.
IEEE 386 - Answers states that elbows are available in 2 general categories.
600-ampere elbows - Answers are designed to operate as a dead break only.
poorly grounded cables - Answers are vulnerable to outages and to being damaged by surges.
Rural Utility Service (RUS) - Answers introduced regulations stating that a jacketed cable must be
grounded a minimum of 4 ground(s) per mile to reduce shield voltages to 25 volts or less.
multiple grounds - Answers will induce currents in the metallic shield, which reduces the cable's
overall ampacity.
bonding - Answers neutralizes shielding currents and reduces fault currents.
bonding - Answers The advantage of bonding is that it neutralizes shielding currents and reduces
fault currents.
soldering - Answers The traditional method of connecting a cable accessory's metallic ground to a
cable's metallic shield.
grounding locations - Answers Two grounding locations can reduce fault currents by dividing the
current between them.
spring clamp - Answers The live action of the spring clamp performs poorly when fault currents and
other surges occur.
solderless connection - Answers Contemporary manufactured kits generally provide a solderless
wire/braid connection(s) for the ground.
concentric neutral splices - Answers In the case of concentric neutral splices, the neutral bundles are
connected across the splice with strand(s) from each bundle connected to the splice's grounding
tab(s).
